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Siemens SIPROTEC 4 7UT6 Series User Manual

Siemens SIPROTEC 4 7UT6 Series
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Insensitive to harmonics and abrupt phase angle changes
Adjustable undervoltage threshold
Circuit Breaker Failure Protection
With monitoring of current flow through each breaker pole on any side of the protected object
Supervision of the breaker position possible (if breaker auxiliary contacts or feedback signal available)
Initiation by each of the internal protection functions
Start by external trip functions possible
Single-stage or two-stage
Short dropout and overshoot times
2 breaker failure protection functions possible (only 7UT613/63x)
External Direct Trip
Tripping of either circuit breaker by an external device via binary inputs
Inclusion of external commands into the internal processing of information and trip commands
With or without trip time delay
Processing of external information
Inclusion of external signals (user defined information) in internal information processing
Pre-defined transformer annunciations for Buchholz protection and oil gassing
Transmission to output relays, LEDs, and via serial system interfaces to central control and data storage
facilities
Flexible functions (only 7UT613/63x)
Up to 12 individually configurable protection or monitoring functions
Input quantities can be selected from all the connected 3-phase or 1-phase measured quantities
Also possible from the measured or combined input quantities: symmetrical components, power compo-
nents, frequency
Standard logic with supervision of the input quantities to over/undershooting of an adjustable limit value
Settable time and dropout delay
External blocking via “Blocking on Measured Quantities Failure” parameterisable
Editable message texts
Additional determination and output of up to 20 minimum or maximum values from measured quantities
or calculated values
Additional determination and output of up to 20 mean values from measured quantities or calculated
values
User-defined Logic Functions (CFC)
Freely programmable combination of internal and external signals for the implementation of user-
defined logic functions
All typical logic functions
Time delays and limit value inquiries
Introduction
1.3 Characteristics
SIPROTEC 4, 7UT6x, Manual 25
C53000-G1176-C230-5, Edition 09.2016

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Siemens SIPROTEC 4 7UT6 Series Specifications

General IconGeneral
BrandSiemens
ModelSIPROTEC 4 7UT6 Series
CategoryProtection Device
LanguageEnglish

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